Upbeat (also sometimes referred to as UpBeat or Up Beat) is a 1999 live and studio album by the Fred Frith Guitar Quartet, a United States-based contemporary classical and experimental music guitar quartet comprising Fred Frith, René Lussier, Nick Didkovsky and Mark Stewart. It is their second album, after Ayaya Moses (1997), and was released by Canadian record label, Ambiances Magnétiques. The live material was drawn from concerts the quartet had performed in Germany, Switzerland, France and Spain in November 1997. The studio tracks were recorded at Tonstudio Amann in Vienna, Austria, also in November 1997.